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Infective Endocarditis Revealed after Resolution of COVID-19 Infection
Tomohisa Sakata1, Kenji Harada1, Yutaka Aoyama1
1Division of Cardiovascular Medicine, Department of Internal Medicine, Jichi Medical University, Japan.
Insights
A COVID-19 patient developed infective endocarditis, leading to heart attack and multiple embolisms. Prompt diagnosis and surgical mitral valve replacement were crucial for recovery.
Area of Science:
- Cardiology
- Infectious Diseases
- Cardiovascular Surgery
Background:
- COVID-19 infection can present with complex cardiovascular complications.
- Infective endocarditis is a serious condition involving heart valve infection and potential systemic embolization.
- Acute myocardial infarction and cerebral embolisms are critical manifestations requiring urgent investigation.
Purpose of the Study:
- To report a rare case of native mitral valve infective endocarditis following COVID-19.
- To highlight the diagnostic challenges and management of embolic events in this context.
- To emphasize the importance of early surgical intervention for severe infective endocarditis.
Main Methods:
- Case report of a 34-year-old female diagnosed with COVID-19.
- Utilized contrast-enhanced computed tomography and brain MRI for embolism detection.
- Performed transthoracic echocardiography for valve assessment and blood cultures for pathogen identification.
- Surgical mitral valve replacement was performed.
Main Results:
- The patient experienced acute myocardial infarction and multiple cerebral embolisms post-COVID-19 treatment.
- Methicillin-susceptible Staphylococcus aureus was identified as the causative agent of infective endocarditis.
- An 11-mm vegetation was found on the posterior mitral valve leaflet.
- Successful surgical mitral valve replacement was achieved.
Conclusions:
- Native mitral valve infective endocarditis can be a severe complication of COVID-19.
- Early diagnosis and aggressive management, including surgery, are vital for favorable outcomes.
- This case underscores the need for vigilance regarding embolic phenomena in post-viral inflammatory conditions.
Abstract:
A 34-year-old previously healthy Japanese woman was diagnosed with COVID-19 and treated with remdesivir and dexamethasone. She was discharge but returned the next day due to acute myocardial infarction. Conservative treatment was selected because of an embolic occlusion in the distal portion. Contrast-enhanced computed tomography and brain magnetic resonance imaging revealed a right renal infarction and multiple cerebral embolisms, respectively; she had a fever of 38.9°C that night. Blood culture was positive for methicillin-susceptible Staphylococcus aureus. Transthoracic echocardiography revealed an 11-mm vegetation on the posterior mitral valve leaflet. Native mitral valve infective endocarditis causing multiple embolizations was diagnosed. She underwent surgical mitral valve replacement.
Related Concept Videos
Endocarditis I: Introduction
Endocarditis II: Clinical Features of Infective Endocarditis
Endocarditis III: Medical Management
Endocarditis IV: Nursing Management
Myocarditis III: Medical Management
Myocarditis II: Clinical Features and Diagnostic Tests

